<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>FormTest</title>
</head>
<body>

<form action="/users/login">
  username：<input type="text" name="username">
  pwd：<input type="text" name="password">
  <button type="submit">提交</button>
</form>
</body>
</html>